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spin [16.1K]
3 years ago
6

Perfect square less than or equal to 16.​

Mathematics
1 answer:
iren2701 [21]3 years ago
3 0

Answer:

a perfect square less than or equal to 16 is 16

Step-by-step explanation:

the perfect squares between 0 and 16 are

1 , 4 , 9 , 16

anyone of them can be your answer.

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Michael spends an average of $120 per month going out to lunch and dinner. If he can cut that
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6 0
3 years ago
A production process is checked periodically by a quality control inspector. the inspector selects simple random samples of 30 f
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Answer:

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We are given that the inspector selects simple random samples of 30 finished products and computes the sample mean product weight.

Also, test results over a long period of time show that 5% of the values are over 2.1 pounds and 5% are under 1.9 pounds.

Now, mean of the population is given the average of two extreme boundaries because mean lies exactly in the middle of the distribution.

So,   Mean, \mu = \frac{1.9+2.1}{2} = 2.0

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Since, we are given that 5% of the values are under 1.9 pounds so we will calculate the z score value corresponding to a probability of 5% i.e.

             z = -1.6449 {from z % table}

We know that z formula is given by ;  

                Z = \frac{Xbar - \mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

              -1.6449 = \frac{1.9 - 2.0}{\frac{\sigma}{\sqrt{n} } }     ⇒  \frac{\sigma}{\sqrt{n} }  = \frac{-0.1}{-1.6449}  

                                           ⇒ \sigma = 0.0608 * \sqrt{30}  {as sample size is given 30}

                                           ⇒ \sigma = 0.03 .

Therefore, Standard deviation for the population of products produced with this process is 0.0333.

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